DEFINITION 7.1.1 Laplace Transform Let f be a function defined for t 2 0. Then the integral LFt)} = | e-stF(t) dt is said to be the Laplace transform of f, provided that the integral converges. to find Lif(t)}. (Write your answer as a function of s.) Scos(t), f(t) = ost 0) 2 +1 s2 + 1

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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I have correctly solved this question using integration by parts, but is there another (possibly more efficient) way to do so? Could I have used the table of transforms? Thank you for your help.

Use Definition 7.1.1,
DEFINITION 7.1.1
Laplace Transform
Let f be a function defined for t 0. Then the integral
L{f(t)}
e stf(t) dt
is said to be the Laplace transform of f, provided that the integral converges.
to find L{f(t)}. (Write your answer as a function of s.)
f(t)
cos(t),
=
ost<n
0,
-TS
se
+s
L{f(t)}
-Ts +1) s
(s > 0)
2 +1
s2 +1
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Transcribed Image Text:Use Definition 7.1.1, DEFINITION 7.1.1 Laplace Transform Let f be a function defined for t 0. Then the integral L{f(t)} e stf(t) dt is said to be the Laplace transform of f, provided that the integral converges. to find L{f(t)}. (Write your answer as a function of s.) f(t) cos(t), = ost<n 0, -TS se +s L{f(t)} -Ts +1) s (s > 0) 2 +1 s2 +1 Need Help? Read It Watch It
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